I was perusing through magic weapons, their creation, and their cost. I have some melee characters that are going to be buying magic weapons at some point. I see the base price for base weapon bonuses in Table 15-8. I want a Flaming Sword, so using Table 15-9 I see that is an additional +1 base price modifier. Adding the modifier to the base results in an 8000 gp +1 Flaming Sword (long, short, rapier, etc.). (I also note this is not a Flame Tongue, just a flaming sword with a +1 to hit/damage modifier).
Based on what I read on the Paizo boards this is correct, but I just wanted to run this by the other DMs to make sure I'm factoring this correctly. If I were to make my own sword (which I do not possess the skills, just speculating) the cost would be halved to 4k.